Focus Fanatics - View Single Post - IAC valve plunger.....
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Old 01-22-2013, 09:15 PM   #2
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Join Date: Feb 2008
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Location: Soldiers Grove, WI
What I Drive: 2003 Comp Orange EAP SVT

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I don't know how you bench tested it, but I think the IACs at rest position is based off the last known "good" idle position, I never got into the mechanics of how it worked beyond recognizing a solenoid. The one I took off was clealry open somewhat when off. A few years ago I cleaned one, it worked a tad better, I replaced it for $60 and it works great now.
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